Yarn feed for twisting machines



Nov: 23, 1948. c. F. POWELL 2,454,405

I YARN FEED FOR TWISTING MACHINES I Filed April 19, 1946 3 Sheets-Sheet1 (70560; E Aawcl/ Nov. 23, 1948i c. F. POWELL YARN FEED FOR TWISTINGMACHINES 3 Sheets-Sheet 2 Filed April 19, 1946 44 C/ayborn F bwe/l Nov.23, 1948. c, F, POWELL 2,454,405

YARN FEED FOR TWISTING' MACHINES Filed A ril 19;, 1946 3 sheets-sheet sC/oyborn F Powe which its associated gear Patented Nov. 1948 YARN FEEDFOR TWISTING MACHINES;

Clayborn F. Powell, Monroe, N. 0., assignor to Branson Company,

Charlotte, N.

tion of South Carolina Application April 19, 19 46, Serial No. 683,590

1 Claim. to]. Vie-16) This invention relates to a wrapping machine, andmore especially to a positive and proved feeding apparatus for moving acore member through one or more spindles, while yarn is wrapped aroundthe core member and feeding it onto a take up package by a positivefeeding action. which will prevent slippage and give a uniform tensionto the finished product, as it is being manufactured and passed onto areceiving package.

It is an object of this invention to provide a feeding mechanismassociated with a wrapping machine, wherein a core member is passedthrough a plurality of spindles and onto which one or more strands ofyarn is twisted as the core member passes through the spindles, and inwhich a positive feeding means is provided for giving a uniform tensionand rate of travel to the core, while the yarn is being wound thereonand while the core with the yarn wrapped therearound is being depositedonto a suitable take up apparatus.

It is another object of this invention to provide feeding apparatus fora strand being manufactured in a wrapping machine comprising aperipherally grooved wheel and a peripherally convex wheel, fitting intosaid groove and between yarn and it is delivered to a receiving packageat a uniform rate of travel.

Some of the objects of the invention having been stated, other objectswill appear as the description proceeds, when taken in connection withthe accompanying drawings, in which:

Figure l. is a conventional wrapping machine and showing my inventionapplied thereto;

Figure 2 is an enlarged elevation with section and taken along the line2-2 in Figure 1;

Figure 3 is a vertical sectional view taken along the line t-i in Figure2;

Figure 4 is a vertical sectional the line d-d in Figure 3;

Figure 5 is a sectional view taken along the line Ei-ll in Figure 3:

view taken along 0., a corporamounted for rotation therein and driven bysuitable means to be later described. This conventional machine also I;and I4. in which hollow spindles II and I 6 are mounted on bolsters l1and I8 disposedon said bolster rail.

Each spindle carries a package-of yarn. such as I8 and 20, and hasextending therefrom pigtails 2i and 22 through which strands of yarn 23and 24 extend for being wrapped around the travelling core, whichisusually a rubber core 25. This vertical sectional view through a partsin 40 Figure 6 is a sectional view taken along the 4 line d@ in Figure3, and omitting the shaft on rotates and omitting the weight associatedwith said gear and also omitting the'arm on which the gear is mountedfor rotation Figure 7 is a schematic diagram of the wrapping machine andshowing the drive mechanism l or the various portions thereof.

Referring more specifically to the drawings, the numeral it indicatesone of the Samsons or frame members of the wrapping machine, which has aplurality of cylinders, such as H and I2,

rubber core comes from any suitable source through a pigtail28 over aroller 21 and beneath a shaft 28 and passes through the hollow bolstersl1 and i8 and through the hollow spindles ll and IS.

The spindles II and it are driven by any suitable means, such as belts30 and I l.being mounted on the cylinders I I and I2, and also the whorlportion of the spindles I 6 and I8.

There is also mounted in said machine, a shaft which is supported insuitable bearings, and there is also a shaft 38 on which a plurality ofarms 31 are mounted, there being an arm 31 for each set of spindles l5and It. The shaft 35 has suitably secured thereon a sleeve 40 by'anysuitable means, such as a set screw 4|, penetrating a hub portion 42 ofa grooved wheel 43, having a peripheral groove 44. Also secured on thesleeve 40 by a pressed fit or the like is a pinion or gear 45.

Each of the arms 31 has fixedlysecured therein a bearing bolt 4'! onwhich a wheel 48, having a convex periphery, is mounted for rotation,each arm 31 having a hub portion 50, in which a set screw iii isthreadably mounted for engaging the bolt or shaft 41, and confining itin the hub portion 50. Threadably left hand end of bolt 41, as in Figure2, is a bolt 52 onto which is adapted to be hung a weight member 53, bymeans of an enlarged hole 54,

tegral with the pinion 91, and the wheel 48 having the convex peripheryis secured on the sleeve portion 99, by any suitable means, such as apressed fit.

The core 26, as h'eretoforedescribed, has the strands of yarn 23 and 24wound therearound, one in one direction and the other in the other as isconventional in thistype of machine, to

thus provide what is known as rubber yarn or has a plurality of bolsterrails or otherwise secured in the finished product elastic yarn afterthe textile filaments 28 and 28 have been wrappedspirally onto theexterior of the rubber core 25. The finished product is indicated byreference character 88 and passes through the groove 84 and is pressedinto the The shaft 88 is supported by a plurality of.

brackets 88 rising upwardly from the frame of the machine and there isalso a plurality of brackets 84, which house a reciprocating bar 85containing the pigtails 58 for traversing the 88 onto the reels 81.

The cylinders II and I! are mounted on suitable shafts 80 and 8| and anyconventional means can be employed for driving all parts of the machinein unison. In Figure.'!, I show means for driving all parts of themachine comprising an electric motor 83, having a belt 84 extendingtherefrom, which is mounted on a suitable pulley 85, secured on shaft 80and a second pulley 88 is secured on shaft 88 and has a belt 81, whichis mounted on a pulley 88 of a shaft 88 extending into a suitable gearbox III which has an output shaft Ii, extending to the exterior thereofon which a pulley I2 is mounted, which has a belt 18 thereon, which isalso mounted on a suitable pulley I8, secured on shaft 8|. Shaft 81 alsohas another pulley It thereon on which a belt I8 is mounted, which beltis also mounted on a pulley 18 secured on a shaft I8 extending into agear box 88 and an output shaft 8| extends from the gear box and has apulley 82 thereon, on which a belt 88 is mounted, which is also mountedon a pulley 88 secured on shaft 88. Shaft 19 also has a pulley 80thereon, on which a belt 8i is mounted, which is also disposed on a slipdown into. the groove 44 and press the finished yarn 88 into the grooveso that when wheel 48 is rotated by-the driving mechanism of themachine, the finished yarn 55 will be pulled through the hollow spindlesI8 and i8 and fed to the take-up mechanism at a uniform rate and therewill ,be a minimum of slippage and thus a more perfectfinished productwill be provided by this improved feeding means.

In the drawings and specification there has been set forth a preferredembodiment of the invention, and although specific terms are employed,they are used in a generic and descriptive sense only. and not forpurposes of limitation, the scope of the invention being defined in theclaim:

I claim:

In a wrapping machine having upper and lowerhollow spindles throughwhich a core is drawn and from which spindles the yarn is wrapped aroundthe core, said machine having pulley 82 secured on shaft 88 for drivingthe I take-up reels 81 of the machine.

It is thus seen that a positive drive is imparted to the shaft 88 alongwith the positive drive to the spindles l5 and i8 and also a positivedrive is applied to the take-up reels 81. By means of this positivedrive, the pinion is rotated in timed relation to the machine, whichrotates its companion or grooved wheel 4S and the wheel 48 having theconvex periphery is adapted to loosely means for advancing the corethrough the spindles while the yarn is being wrapped thereon, comprisinga wheel having a smooth concave periphery disposed above the uppermostspindle and having a second wheel provided with a smooth convexperiphery resting by gravity in the smooth concave periphery of thefirst wheel and between which the finished product is passed afterleaving the spindles, said first wheel having a pinion fixedly mountedon one side thereof and the second wheel having a pinion fixedly mountedon one side thereof and meshing with the firstnamed pinion and meansdriven by the machine for driving the first wheel which in turn drivesthe second wheel to positively draw the yarn through the spindles and tofeed it from the two wheels to suitable take-up means.

CLAYBORN F. POWELL.

assurances oI'rnn The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 320,844 Fuyat June 16, 18852,023,515 Chatfield Dec. 10, 1935 2,211,434 Perry Aug. 13, 19402,317,921 Leach Apr. 27, 1945i

